D-Link DI-784 Router Manual PDF (Setup & Configuration Guide)

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6

Features

TM

±

Connects multiple computers to a Broadband (Cable or DSL) modem to

share the Internet connection

±

IP Filtering

±

Advanced Firewall features

±

DHCP server supported enables all networked computers to automatically

receive IP addresses

±

Web-based interface for Managing and Configuring

Access Control to manage users on the network

±

Supports special applications that require multiple connections

±

Equipped with 4 10/100 Ethernet ports, 1 WAN port, Auto MDI/MDIX

±

URL Filtering

±

Domain Blocking

±

Scheduling

±

Supports NAT with VPN pass-through, providing added security

±

MAC Filtering

Operates in the 2.4GHz and 5GHz frequency ranges

±

User-friendly configuration and diagnostic utilities

±

Utilizes

OFDM

technology (

O

rthogonal

F

requency

D

ivision

M

ultiplexing) to

ensure strong wireless signals for both 802.11g and 802.11a

802.1x

Authentication

in conjunction with the RADIUS server verifies the

identity of would be clients

±

WPA

(Wi Fi Protected Access

) authorizes and identifies users based on a

secret key that changes automatically at a regular interval, for example:

±

Backwards compatible with the 802.11b standard to provide a wireless data

rate of up to 11Mbps

±

Fully compatible with the 802.11a and 802.11g standards to provide a wire-

less data rate of up to 54Mbps

±

TKIP

(Temporal Key Integrity Protocol), in conjunction with a RADIUS

server, changes the temporal key every 10,000 packets, ensuring greater

security

Pre-Shared Key

mode means that the home user, without a RADIUS

server, can connect securely via a pre-shared key, vastly improving the

safety of communications on the network.

Page 7 / 100

7

LEDs

- Front Panel of Unit

LED

stands for

L

ight-

E

mitting

D

iode. The

DI-784

has the following LEDs:

WLAN LEDs

for

11g

and

11a

wireless net-

work segments.

A solid light indi-

cates that the

wireless segment is

ready. The LEDs

blink during wireless

data transmission.

WAN LED

A solid light

indicates connec-

tion on the WAN

port. This LED

blinks during data

transmission.

Local

Network LEDs

A solid light indicates

a connection to an

Ethernet-enabled

computer on ports 1-

4. The LEDs blink

during data transmis-

sion.

Status

A blinking light

indicates that the

DI-784 is ready.

Power

A solid light

indicates a proper

connection to the

power supply.

Page 8 / 100

8

Wireless Basics

D-Link

wireless products are based on industry standards to provide easy-to-use and

compatible high-speed wireless connectivity within your home, business or public access

wireless networks. D-Link wireless products will allow you access to the data you want,

when and where you want it. You will be able to enjoy the freedom that wireless networking

brings.

A WLAN is a cellular computer network that transmits and receives data with radio

signals instead of wires. WLANs are used increasingly in both home and office

environments, and public areas such as airports, coffee shops and universities. Innovative

ways to utilize WLAN technology are helping people to work and communicate more

efficiently. Increased mobility and the absence of cabling and other fixed infrastructure

have proven to be beneficial for many users.

Wireless users can use the same applications they use on a wired network. Wireless

adapter cards used on laptop and desktop systems support the same protocols as

Ethernet adapter cards.

People use wireless LAN technology for many different purposes:

Mobility

-

P

roductivity increases when people have access to data in any location

within the operating range of the WLAN. Management decisions based on real-time

information can significantly improve worker efficiency.

Low Implementation Costs

–

WLANs are easy to set up, manage, change and

relocate. Networks that frequently change can benefit from WLANs ease of

implementation. WLANs can operate in locations where installation of wiring may be

impractical.

Installation and Network Expansion

-

Installing a WLAN system can be fast

and easy and can eliminate the need to pull cable through walls and ceilings. Wireless

technology allows the network to go where wires cannot go - even outside the home or

office.

Scalability

–

WLANs can be configured in a variety of topologies to meet the needs of

specific applications and installations. Configurations are easily changed and range

from peer-to-peer networks suitable for a small number of users to larger infrastructure

networks to accommodate hundreds or thousands of users, depending on the number

of wireless devices deployed.

Inexpensive Solution

-

Wireless network devices are as competitively priced as

conventional Ethernet network devices.

Page 9 / 100

9

Standards-Based Technology

The

DI-784 Wireless Broadband Router utilizes the new

802.11g

standard, in addition

to the 802.11a and 802.11b standards.

The IEEE

802.11g

standard is an extension of the 802.11b standard. It increases the

data rate up to 54 Mbps within the 2.4GHz band, utilizing

OFDM technology.

This means that in most environments, within the specified range of this device, you will

be able to transfer large files quickly or even watch a movie in MPEG format over your

network without noticeable delays. This technology works by transmitting high-speed

digital data over a radio wave utilizing

OFDM

(

O

rthogonal

F

requency

D

ivision

M

ultiplexing)

technology.

OFDM

works by splitting the radio signal into multiple smaller sub-signals

that are then transmitted simultaneously at different frequencies to the receiver.

OFDM

reduces the amount of

crosstalk

(interference) in signal transmissions.

.

Wireless Basics

(continued)

Installation Considerations

The D-Link

Air

Premier AG DI-784 lets you access your network, using a wireless

connection, from virtually anywhere within its operating range. Keep in mind, however,

that the number, thickness and location of walls, ceilings, or other objects that the

wireless signals must pass through, may limit the range. Typical ranges vary depending

on the types of materials and background RF (radio frequency) noise in your home or

business. The key to maximizing wireless range is to follow these basic guidelines:

Keep the number of walls and ceilings between the DI-784 and other network

devices

to a minimum - each wall or ceiling can reduce your D-Link wireless

product’s range from 3-90 feet (1-30 meters.) Position your

devices so that

the number of walls or ceilings is minimized.

1

Be aware of the direct line between network devices. A wall that is 1.5 feet

thick (.5 meters), at a 45-degree angle appears to be almost 3 feet (1 meter)

thick. At a 2-degree angle it looks over 42 feet (14 meters) thick! Position

devices so that the signal will travel straight through a wall or ceiling (instead

of at an angle) for better reception.

2

Building Materials can impede the wireless signal - a solid metal door or

aluminum studs may have a negative effect on range. Try to position wireless

devices and computers with wireless adapters so that the signal passes

through drywall or open doorways and not other materials.

3

Keep your product away (at least 3-6 feet or 1-2 meters) from electrical

devices or appliances that generate extreme RF noise.

4

Page 10 / 100

10

Getting Started

Setting up a

Wireless

Infrastructure

Network

You will need broadband Internet access (a Cable or DSL-subscriber line into

your home or office)

Consult with your Cable or DSL provider for proper installation of the modem

Connect the Cable or DSL modem to the DI-784 Wireless Router (

see the

printed Quick Installation Guide included with your router.

)

If you are connecting a desktop computer to your network, install the D-Link

Air

Premier AG

DWL-AG530 wireless PCI adapter into an available PCI slot on your

desktop computer.

(See the printed Quick Installation Guide included with the network adapter.)

Install the D-Link DWL-AG650S wireless Cardbus adapter into a laptop com-

puter. (

See the printed Quick Installation Guide included with the DWL-AG660.

)

Install the D-Link DFE-530TX+ wireless Cardbus adapter into a desktop com-

puter. The four Ethernet LAN ports of the DI-784 are Auto MDI/MDIX and will

work with both Straight-through and Crossover cable.

(

See the printed Quick Installation Guide included with the DFE-530TX+.

)

For a typical wireless setup at home (as shown above),

please do the following:

1

2

3

4

5

6

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